Machine for scouring and separating grain



2 Sheets-Sheet 1. M. BARTHOLOMEW.

Grain Scouring and Separating Device.

No. 29.237.' Patented my 24, 1860.

@www

n PUERQ Ptmllimugnphef. waminglm D. C,

TSts-/S'eet 2. NI. BARTHOLONIEW.

Grain Scouring and 'Separating Device.

N. PETERsf'Fnomuxnagmpher, washnmm Dv C.

Unrrn aras MATTHEWY BARTHOLOMEV, OF ENTERPRISE, PENNSYLVANIA.

MACHINE FOR SCOURING AND SEPARTING GRAIN.

Specification of Letters Patent No. 29,237, dated July 24, 1860.

Toy all whom fit may concern:

Be it known that I, hIa'rTHnw BARTrIoLo- Mnw, of Enterprise, in thecounty of Lan caster and State of Pennsylvania, have invented a new andImproved Grain Scouring and Separating Machine; and I do hereby declarethat the following is a full, clear, and exact description of the same,reference being had to the annexed drawings, making a part of thisspecification, in which- Figure 1 is a vertical central section of myinvention taken in the line m, rr, Figs. 4l, 5,

7, and S. Fig. 2 a side eleva-tion of the same. Fig. 3 a detachedelevation of the spouts looking in the direction of arrow l, Fig. 2.Figs. 4.-, 5, 6 and 7, horizontal sections of the machine takenrespectively in the lines ae, al, zum', Figs. 1 and 2. Fig. 8 is a planor top view of my invention.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention consists in the employment or use of an improved scouringand beating device in connection lwith blast spouts, valves, and a fanso arranged as to constitute a simple and eflicient implement for theintended purpose.

To enable those skilled in the art to fully understand and construct myinvention I will proceed to describe it.

A, represents a rectangular frame in the lower part of which acylindrical fan box B, is placed having slatted openings a, a, atopposite sides, said openings communicating with blast spouts B, C,which extend upward at opposite sides of the frame A, as shown in Figs.l and 2. The blast spout B', is open at its bottom as shown at and itsupper end is slightly curved and is provided with a slide or valve c,shown clearly in Figs. 1 and 3. The spout B', at its junction with thefan box B, is provided with a screen c. The spout C, is curvedconsiderably, and it is provided at a point near the fan boX B, with aplate or valve D, which is a plate curved at its inner end and loaded atits outer part outside of the spout C, as shown at (Z, so that the valvemay be adjusted and retained in an inclined position when the machine isin operation. See Fig. 1. The

upper end of the spout C, is provided with a valve or slide e, at itsinner side and is provided at its outer side with a small hopper f,shown in Figs. 1, 2, and 8.

E, is a vertical shaft which is placed centrally in the frame A, and hasits lower end stepped in a cross piece g, at'the lower end of the framebelow the fan box B.

At about the center of the frame A, there is placed a horizontalplatform F, on which an annular ledge h, is placed concentric with shaftE. This ledge z., 'forms the support for a` number of segments z', whichare 'perforated, are of cast metal and secured between the ledge 71, anda similar ledge or rim j, above. The rim j, also serves as a support fora series of segments 7c, which form a cylinder somewhat smaller than z'.The upper edges of the segment 71;, are secured in a rim Z, which alsosupportsa series of segments, mf, the upper edges of which are fitted inthe under side of a circular plate n. The segments z', 7c, m, have smalloblong perforations 0, as shown clearly in Fig. 2, and the whole whenput or adjusted together form the case G, of the scourer. The innersides of .the segments are providedwith vertical ribs 0, of rounded orconvex form as shown clearly in Figs. 1, l, 5, and 6.

On the shaft E, and within 'the case G, there are placed three series ofbeaters H, I, J. These beaters are plates attached radially to the shaftE, asshown in Fig. The beaters I, J, which are the principal ones aredivided by a 'horizontal annular plate K, the beaters I, being inline'with the centers of the spaces between the beaters J. The uppermostbeaters H, are also separated from the beaters I, by an annular plate L.The beaters H, are of considerable less depth than the beaters l, or J,and the latter have their ends rounded as shown in Fig. 1. On the upperedges of the beaters H, an annular plate M, is secured, to which at itsperiphery a series of vertical pins p, are attached. rllhe plates K, L,M, being annular and openings p, allowed at their centers, a draughtpassage is allowed all around the shaft E, and the center of theplatform F, has an opening g, made in it to admit the air as shown inFig. 1. The platform F, also, has a spout r, leading from it into spoutB, the spout r, forming a communication between the lower part of thescouring apparatus and said spout` B.

The spout C, at a point just above the scouring device is divaricated orforked so as to have a portion, s, extend directly over an opening l, inthe top plate a, of the scouring device, see Fig. 1.

The upper end of the shaft E, has its bearing in a cross piece u, on theupper art of the frame A. Vithin the fan boX and on the shaft E, the fanN, is placed.

The operation is as follows. The shaft E, is rotated by any convenientpower and the grain to be scoured and separated from impurities isallowed to pass into the hopper f, of spout C, and down through thepart, s', of said spout into the case G, of the scour ing device, asindicated by arrow l. The grain in thus passing down through said partof the spout is subjected to a blast generated by the rotation of thefan N, said blast being made to ascend evenly in the spout inconsequence of the late or valve D, which, when properly adjusted,delects the current from the back or outer side of the spout to whichside it is forced by the action of the fan and thereby causes the blastto ascend centrally up the spout and act in the most eiiicient manner onthe descending grain depriving the latter of all loose light foreignsubstances. The grain in entering the case G, falls on the plate M, thevertical pins p, of which as said plate rotates evenly distributes thegrain around the upper part of the case. The grain passes down betweenthe beaters and the inner side of the case G, and is thoroughly scouredby the action of the beaters and its action against the inner side ofthe segments z', 7c, m, the vertical ribs o', serve to check slightlythe descent of the grain in the case G, and scatter it so that it willbe subjected to a proper scouring action in passing through the case.The rotation of the beaters generate a blast within the case G, thecurrent passing up through the opening g, and plates K L, and downthrough the top of the case and driving all the dust through theperforations, a, of the case G. The relative position of the beaters I,J, adds to their efficiency. The grain as it reaches the lower part ofthe scouring device passes into spout, fr', and is conducted therebyinto the lower part of spout B', where the grain is again subjected to ablast from the fan N, and all remaining light impurities separated fromit. The strength of the blast in the spouts B, C, may be regulated byadjusting the valves or slides, c, e, and the spout C, may be closed atany time by raising the loaded end of the plate or valve D.

I do not claim subjecting the grain to the action oit' a blast generatedby a single fan previous to its advent into the scourer and also afterits discharge therefrom, for this has been previously done, but:

Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is:

1. The employment or use of the rotating beaters H, I, J, placed withinthe case G, formed of perforated segments z', 7c, m, provided withvertical convex ribs o, at their inner sides, in connection with thecentral openings g, p', p, in plates F, K, L; to permit of a blast ordraught passage at the center of case G, or around the shaft E, as andfor the purpose set forth.

2. The combination of the spouts B', C, fan N, beaters H, I, J, and caseG, when arranged or joint operation as described.

MATTHEW BARTHOLOMEW.

Witnesses:

' J. P. ROUK,

J. L. LANDIs.

